Screw-down device of section mill

Abstract

The invention provides a profile steel rolling mill screw-down device which comprises a worm, a screw-down device and a screw-down device. The worm is rotationally connected to the inner side of a supporting frame. The worm gear is located on the inner side of the supporting frame and connected with the worm in a matched mode, a moving hole coaxial with the worm gear is formed in the supporting frame, a downward-pressing screw rod is arranged in the moving hole, and internal threads corresponding to the downward-pressing screw rod are formed in the inner side wall of the worm gear; the pressing screw rod is in threaded connection with the inner side of the worm wheel and moves in the forming direction of the moving hole; and the roller system is arranged corresponding to the downward pressing screw rod, and the downward pressing screw rod drives the roller system to move. The rolling specification adjusting device has the beneficial effects that the rolling specification is adjusted through the worm gear and the worm, and a finer rolling specification adjusting function is provided through cooperation of the worm gear and the worm.

Description

Technical Field

[0001] The invention belongs to the field of steel rolling equipment, and in particular relates to a steel section rolling mill pressing device. Background Art

[0002] As my country's economic strength and comprehensive national power have been greatly improved, the proportion of major economic and social aggregate indicators in the world has continued to increase, and the living standards of the Chinese people have been greatly improved. These have greatly promoted the development of the construction, manufacturing, and transportation industries. Steel companies, as upstream companies in these industries, have also benefited greatly and have therefore achieved great development. At the same time, high-quality and high-quality steel products have become increasingly favored by the market. As a widely used material, steel plays an extremely important role in industry, agriculture, automobiles, construction, manufacturing and even aerospace. The production level of steel is an important indicator of a country's level of modernization.

[0003] In the prior art, the height of the pressure rollers of a rolling mill cannot be adjusted, resulting in a fixed size of rolled steel, which cannot meet the production requirements of multiple sizes. The downward pressure structure achieved by equipment such as cylinders is often welded to the equipment. When the power component is damaged, it is difficult to repair, and the amplitude of the downward pressure cannot be precisely controlled. The device is often an integrated structure, which makes the maintenance of the equipment time-consuming and labor-intensive. Summary of the invention

[0004] In view of this, the present invention aims to provide a steel section rolling mill press-down device in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A steel section rolling mill pressing device, comprising:

[0007] A worm, the worm being rotatably connected to the inner side of the support frame;

[0008] A worm wheel, the worm wheel is located inside the support frame and is connected with the worm, a moving hole coaxial with the worm wheel is opened in the support frame, a pressing screw is arranged in the moving hole, an internal thread corresponding to the pressing screw is opened on the inner wall of the worm wheel, the pressing screw is threadedly connected to the inner side of the worm wheel and moves along the direction in which the moving hole is opened;

[0009] The roller system is arranged corresponding to the pressing screw, and the pressing screw drives the roller system to move.

[0010] Furthermore, there are two downward pressure screws, each of which is correspondingly provided with a worm wheel and a worm, and the two worms are connected by a gear coupling, one of the worms is connected to the power output end of the hydraulic motor through a rigid coupling, and the housing of the hydraulic motor is fixedly connected to the support frame.

[0011] Furthermore, a rotating hole is opened in the support frame, the worm is located inside the rotating hole, bearings are fixedly provided at both ends of the rotating hole, the worm is fixedly connected to the inner sleeve of the bearing, and the worm is located in the middle of the two bearings and has a thread corresponding to the worm wheel, and the worm is connected to the worm wheel through the thread.

[0012] Furthermore, a protective cover is provided at one end of the bearing away from the support frame, and a closed cavity is formed among the protective cover, the inner wall of the rotating hole, and the outer wall of the worm.

[0013] Furthermore, a first pressure cover is fixedly provided at one end of the movable hole, and a second pressure cover is fixedly provided at the other end, and a bearing cavity corresponding to the worm gear and the downward pressure screw is formed between the second pressure cover and the first pressure cover, and a pair of centering sleeves are provided in the bearing cavity, and the worm gear is located between the two centering sleeves, and the outer wall of the worm gear is in contact with the inner wall of the centering sleeve, and the outer wall of the centering sleeve is in contact with the inner wall of the movable hole.

[0014] Furthermore, an anti-rotation key is fixedly arranged at one end of the pressing screw away from the roller system, a key slot corresponding to the anti-rotation key is opened on the inner wall of the moving hole, and the anti-rotation key is located inside the key slot and fits with the inner wall of the key slot.

[0015] Furthermore, a magnetic scale is fixedly provided at one end of the pressing screw away from the roller system, and the portion located outside the movable hole is wrapped with a protective cover, and the protective cover is fixedly connected to the support frame.

[0016] Furthermore, a connecting assembly is provided between the roller system and the downward pressure screw, and the connecting assembly includes a pressure block and a spherical pad, the spherical pad is fixedly connected to the roller system, and the pressure block is fixedly connected to the downward pressure screw; the end surface of the pressure block away from the downward pressure screw is a convex arc surface, and the end surface of the spherical pad away from the roller system is a concave arc surface, and the convex arc surface and the concave arc surface are in fit with each other.

[0017] Furthermore, the spherical pad is fixedly connected to the roller system through an adjustment mechanism, and the adjustment mechanism includes a slide rail and a slider, the slide rail is fixedly connected to the roller system, the slider is fixedly connected to the spherical pad, a slide groove is provided on the end surface of the slider away from the spherical pad, the slide rail is located on the inner side of the slide groove, and stabilizing bolts are provided on both sides of the slider, and the stabilizing bolts tighten the slide rail.

[0018] Furthermore, a plurality of stabilizing grooves are formed on the slide rail, stabilizing plates are fixedly connected on both sides of the slider, stabilizing holes are formed on the stabilizing plates, the stabilizing bolts are threadedly connected to the inner side of the stabilizing holes, the stabilizing bolts penetrate the stabilizing holes, are inserted into the inner side of the stabilizing grooves, and are tightened against the bottom surface of the stabilizing grooves.

[0019] Compared with the prior art, the steel section rolling mill press-down device of the present invention has the following beneficial effects:

[0020] With the help of this device, the height of the pressure roller of the rolling mill can be freely adjusted to adapt to the production requirements of multiple sizes. When the power component or any structural part is damaged, the device can be disassembled and deconstructed to realize the replacement function of the damaged structural parts, thereby improving the durability of the equipment. The downward pressure amplitude of the pressure roller can be finely controlled, providing better rolling specification adjustment function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the device according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the worm part according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the turbine and the downward screw according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the anti-rotation key part according to an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of the adjustment mechanism of the embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Worm; 2. Worm wheel; 3. Roller system; 4. Support frame; 5. Pressing screw; 6. Gear coupling; 7. Rigid coupling; 8. Hydraulic motor; 9. Bearing; 10. First gland; 11. Second gland; 12. Centering sleeve; 13. Anti-rotation key; 14. Magnetic scale; 15. Protective cover; 16. Pressure block; 17. Spherical pad; 18. Adjusting mechanism; 181. Slide rail; 182. Sliding block; 183. Stabilizing plate; 184. Stabilizing hole; 185. Stabilizing groove. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0033] like Figure 1-5 As shown: A steel section rolling mill pressing device, comprising:

[0034] A worm 1, wherein the worm 1 is rotatably connected to the inner side of the support frame 4;

[0035] A worm wheel 2, the worm wheel 2 is located inside the support frame 4 and is connected with the worm 1. A moving hole coaxial with the worm wheel 2 is opened in the support frame 4, a pressing screw 5 is arranged in the moving hole, an internal thread corresponding to the pressing screw 5 is opened on the inner wall of the worm wheel 2, and the pressing screw 5 is threadedly connected to the inner side of the worm wheel 2 and moves along the direction of the moving hole;

[0036] The roller system 3 is arranged corresponding to the pressing screw 5, and the pressing screw 5 drives the roller system 3 to move.

[0037] There are two downward pressing screws 5, and each of the two downward pressing screws 5 is correspondingly provided with a worm wheel 2 and a worm 1. The two worms 1 are connected by a gear coupling 6, and one of the worms 1 is connected to the power output end of the hydraulic motor 8 through a rigid coupling 7. The housing of the hydraulic motor 8 is fixedly connected to the support frame 4.

[0038] A rotating hole is opened in the support frame 4, and the worm 1 is located inside the rotating hole. Bearings 9 are fixedly provided at both ends of the rotating hole. The worm 1 is fixedly connected to the inner sleeve of the bearing 9. The worm 1 is located in the middle of the two bearings 9 and has a thread corresponding to the worm wheel 2. The worm 1 is connected to the worm wheel 2 through the thread.

[0039] A protective cover is provided at one end of the bearing 9 away from the support frame 4 , and a closed cavity is formed among the protective cover, the inner wall of the rotating hole, and the outer wall of the worm 1 .

[0040] A first pressure cover 10 is fixedly provided at one end of the movable hole, and a second pressure cover 11 is fixedly provided at the other end. A bearing cavity corresponding to the worm gear 2 and the downward screw 5 is formed between the second pressure cover 11 and the first pressure cover 10. A pair of centering sleeves 12 are provided in the bearing cavity. The worm gear 2 is located between the two centering sleeves 12, and the outer wall of the worm gear 2 is in contact with the inner wall of the centering sleeve 12, and the outer wall of the centering sleeve 12 is in contact with the inner wall of the movable hole.

[0041] An anti-rotation key 13 is fixedly arranged at one end of the pressing screw 5 away from the roller system 3, and a key slot corresponding to the anti-rotation key 13 is opened on the inner wall of the moving hole. The anti-rotation key 13 is located inside the key slot and fits with the inner wall of the key slot.

[0042] A magnetic scale 14 is fixedly disposed at one end of the pressing screw 5 away from the roller system 3 , and a protective cover 15 is wrapped around the portion located outside the moving hole, and the protective cover 15 is fixedly connected to the support frame 4 .

[0043] A connecting assembly is provided between the roller system 3 and the pressing screw 5, and the connecting assembly includes a pressure block 16 and a spherical pad 17, the spherical pad 17 is fixedly connected to the roller system 3, and the pressure block 16 is fixedly connected to the pressing screw 5; the end surface of the pressure block 16 away from the pressing screw 5 is a convex arc surface, and the end surface of the spherical pad 17 away from the roller system 3 is a concave arc surface, and the convex arc surface and the concave arc surface are in contact with each other; when the roller system 3 realizes a slight offset through the two arc surfaces during the rolling process, a more uniform and stable downward pressure is provided, which prevents the roller system 3 from being offset due to the friction of the rolled workpiece on the roller system 3, thereby preventing the downward pressure from being unstable.

[0044] The spherical pad 17 is fixedly connected to the roller system 3 through an adjustment mechanism 18. The adjustment mechanism 18 includes a slide rail 181 and a slider 182. The slide rail 181 is fixedly connected to the roller system 3. The slider 182 is fixedly connected to the spherical pad 17. A slide groove is provided on the end surface of the slider 182 away from the spherical pad 17. The slide rail 181 is located on the inner side of the slide groove. Stabilizing bolts are provided on both sides of the slider 182. The stabilizing bolts tighten the slide rail 181.

[0045] The slide rail 181 is provided with a plurality of stabilizing grooves 185 , and both sides of the slider 182 are fixedly connected with stabilizing plates 183 , and the stabilizing plates 183 are provided with stabilizing holes 184 , and the stabilizing bolts are threadedly connected to the inner side of the stabilizing holes 184 , and the stabilizing bolts penetrate the stabilizing holes 184 and are inserted into the inner side of the stabilizing grooves 185 , and tighten the bottom surface of the stabilizing grooves 185 .

[0046] Working process: The hydraulic motor 8 drives the worm 1 to rotate, and the two worms 1 are connected by a gear coupling 6. The worm 1 drives the worm wheel 2 to rotate. The worm wheel 2 is connected to the pressing screw by a trapezoidal thread. The rotation of the worm wheel 2 drives the pressing screw to move up and down. An anti-rotation key 13 is installed on the top of the pressing screw. The anti-rotation key 13 moves up and down in the keyway of the support frame 4 to prevent the pressing screw from rotating itself during the up and down movement. A spherical pad 17 and a pressure block 16 are installed under the pressing screw. The pressure block 16 acts on the bearing 9 seat of the rolling mill roll system 3 to provide rolling force for the rolling mill.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel section rolling mill press-down device, characterized in that: include: A worm (1), the worm (1) being rotatably connected to the inner side of the support frame (4); A worm wheel (2), the worm wheel (2) is located on the inner side of the support frame (4) and is connected to the worm (1); a movable hole coaxial with the worm wheel (2) is opened in the support frame (4); a pressing screw (5) is arranged in the movable hole; an internal thread corresponding to the pressing screw (5) is opened on the inner side wall of the worm wheel (2); the pressing screw (5) is threadedly connected to the inner side of the worm wheel (2) and moves along the direction of the movable hole; A roller system (3), wherein the roller system (3) is arranged corresponding to a pressing screw (5), and the pressing screw (5) drives the roller system (3) to move.

2. A steel section rolling mill press-down device according to claim 1, characterized in that: The pressing screw rods (5) are provided with two, each of which is provided with a worm wheel (2) and a worm (1), the two worms (1) are connected via a gear coupling (6), one of the worms (1) is connected to the power output end of the hydraulic motor (8) via a rigid coupling (7), and the housing of the hydraulic motor (8) is fixedly connected to the support frame (4).

3. A steel section rolling mill press-down device according to claim 1, characterized in that: The support frame (4) has a rotating hole in it, the worm (1) is located inside the rotating hole, bearings (9) are fixedly provided at both ends of the rotating hole, the worm (1) is fixedly connected to the inner sleeve of the bearing (9), a thread corresponding to the worm wheel (2) is formed on the worm (1) at a position between the two bearings (9), and the worm (1) is connected to the worm wheel (2) through the thread.

4. A steel section rolling mill press-down device according to claim 3, characterized in that: A protective cover is provided at one end of the bearing (9) away from the support frame (4), and a closed cavity is formed between the protective cover, the inner wall of the rotating hole, and the outer wall of the worm (1).

5. A steel section rolling mill press-down device according to claim 1, characterized in that: A first pressure cover (10) is fixedly provided at one end of the movable hole, and a second pressure cover (11) is fixedly provided at the other end; a bearing cavity corresponding to the worm gear (2) and the downward screw (5) is formed between the second pressure cover (11) and the first pressure cover (10); a pair of centering sleeves (12) are provided in the bearing cavity; the worm gear (2) is located between the two centering sleeves (12); the outer wall of the worm gear (2) is in contact with the inner wall of the centering sleeve (12); and the outer wall of the centering sleeve (12) is in contact with the inner wall of the movable hole.

6. A steel section rolling mill press-down device according to claim 1, characterized in that: An anti-rotation key (13) is fixedly provided at one end of the pressing screw (5) away from the roller system (3), and a keyway corresponding to the anti-rotation key (13) is opened on the inner wall of the moving hole. The anti-rotation key (13) is located on the inner side of the keyway and fits with the inner wall of the keyway.

7. A steel section rolling mill press-down device according to claim 1, characterized in that: A magnetic scale (14) is fixedly provided at one end of the pressing screw rod (5) away from the roller system (3), and the portion located outside the movable hole is wrapped with a protective cover (15), and the protective cover (15) is fixedly connected to the support frame (4).

8. A steel section rolling mill press-down device according to claim 1, characterized in that: A connecting assembly is provided between the roller system (3) and the pressing screw (5), and the connecting assembly comprises a pressing block (16) and a spherical pad (17); the spherical pad (17) is fixedly connected to the roller system (3), and the pressing block (16) is fixedly connected to the pressing screw (5); the end surface of the pressing block (16) away from the pressing screw (5) is a convex arc surface, and the end surface of the spherical pad (17) away from the roller system (3) is a concave arc surface, and the convex arc surface and the concave arc surface are in contact with each other.

9. A steel section rolling mill press-down device according to claim 8, characterized in that: The spherical pad (17) is fixedly connected to the roller system (3) via an adjustment mechanism (18); the adjustment mechanism (18) comprises a slide rail (181) and a slider (182); the slide rail (181) is fixedly connected to the roller system (3); the slider (182) is fixedly connected to the spherical pad (17); a slide groove is provided on the end surface of the slider (182) away from the spherical pad (17); the slide rail (181) is located inside the slide groove; stabilizing bolts are provided on both sides of the slider (182); the stabilizing bolts press against the slide rail (181).

10. A steel section rolling mill press-down device according to claim 9, characterized in that: The slide rail (181) is provided with a plurality of stabilizing grooves (185), and both sides of the slide block (182) are fixedly connected with stabilizing plates (183), and the stabilizing plates (183) are provided with stabilizing holes (184), and the stabilizing bolts are threadedly connected to the inner side of the stabilizing holes (184), and the stabilizing bolts penetrate the stabilizing holes (184) and are inserted into the inner side of the stabilizing grooves (185), and are pressed against the bottom surface of the stabilizing grooves (185).

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